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| Registros recuperados: 8.210 | |
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| Noone, K.J.; Öström, E.; Ferek, R.J.; Garrett, T.; Hobbs, P.V.; Johnson, D.W.; Taylor, J.P.; Russell, L.M.; Flagan, R.C.; Seinfeld, J.H.; O'Dowd, C.D.; Smith, M.H.; Durkee, P.A.; Nielsen, K.; Hudson, J.G.; Pockalny, R.A.; De Bock, L.; Van Grieken, R.E.; Gasparovic, R.F.; Brooks, I.. |
| The effects of anthropogenic particulate emissions from ships on the radiative, microphysical, and chemical properties of m(oderately polluted marine stratiform clouds are examined. A case study of two ships in the same air mass is presented where one of the vessels caused a discernible ship track while the other did not. <i>In situ</i> measurements of cloud droplet size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to measurements of cloud radiative properties. The differences between the aerosol in the two ship plumes are discussed; these indicate that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aerosols; Air pollution; Albedo; Anthropogenic factors; Atmospheric boundary layer; Atmospheric particulates; Chemical plumes; Cloud physics; Clouds; Droplets; Fuels; Ocean-atmosphere system; Pollution effects; Radiative transfer; Ships; Size distribution. |
| Ano: 2000 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8840 |
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| Blumenthal, Dana M; University of Minnesota; dblumenthal@npa.ars.usda.gov; Jannink, Jean-Luc; University of Minnesota; jjannink@iastate.edu. |
| Collaboration among multiple stakeholders can be crucial to the success of natural resource management. In recent years, a wide variety of methods have been developed to facilitate such collaboration. Because these methods are relatively new and come from different disciplines, little attention has been paid to drawing comparisons among them. Thus, it is very difficult for potential users to sort through the increasingly large literature regarding such methods. We suggest the use of a consistent framework for comparing collaborative management methods, and develop such a framework based on five criteria: participation, institutional analysis, simplification of the natural resource, spatial scale, and stages in the process of natural resource management. We... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive management; Agriculture; Agroecosystem analysis; Collaboration; Ecosystem management; Natural resource management; Participatory rural appraisal; Rapid rural appraisal; Soft systems analysis. |
| Ano: 2000 |
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| Andreola,F.; Costa,L. M.; Olszevski,N.; Jucksch,I.. |
| O presente trabalho teve por objetivo avaliar a influência da cobertura vegetal de inverno, constituída de uma associação de aveia preta (Avena strigosa Schreb) com nabo forrageiro (Raphanus sativus L.), da adubação orgânica com esterco de aves e da adubação mineral sobre o rendimento de grãos da sucessão feijão/milho numa Terra Roxa Estruturada do estado de Santa Catarina. A cobertura do solo influenciou o rendimento de grãos de feijão, mas não o de milho. Isto pode ser atribuído à produção de uma safra de feijão antes do estabelecimento da cultura do milho e ao fato de a associação de aveia preta com nabo forrageiro apresentar uma relação C/N mais estreita que a da aveia. Independentemente do uso da cobertura vegetal, a prática da adubação promoveu... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cobertura do solo; Culturas; Adubação. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832000000400018 |
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| Fichaut, Michele; Balopoulos, Efstathios; Dooley, Harry; Garcia-fernandez, Maria; Iona, Athanasia; Jourdan, Didier; Baudet, Laurent; Maillard, Catherine. |
| The MEDATLAS hydrological data base, has been created by a consortium of several data centers, including HNODC (Greece), IEO (Spain), EPSHOM/CMO (French navy), IFREMERJSISMER the coordinating center (France) and ICES (Denmark) as the supervisor of the quality control procedure, in the frame of the MEDATLAS project. This project is a MAST supporting initiative for ocean data and information management. Its objectives were to assemble a comprehensive data base of temperature and salinity profiles collected in the Mediterranean sea by t he scientific laboratories and the navies, to check them for quality and to revise the climatological statistics by using this updated date set. An important part of the work has been devoted to define a common protocol to... |
| Tipo: Text |
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| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00251/36211/34756.pdf |
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| Rodrigues,C.J.; Rodrigues Junior,A.J.. |
| In the present study the age-related changes of the striated muscle elastic fiber system were investigated in the diaphragm and rectus abdominis muscles of 1-, 4-, 8- and 18-month-old rats. The activation patterns of these muscles differ in that the diaphragm is regularly mobilized tens of times every minute during the entire life of the animal whereas the rectus abdominis, although mobilized in respiration, is much less and more irregularly activated. The elastic fibers were stained by the Verhoeff technique for mature elastic fibers. Weigert stain was used to stain mature and elaunin elastic fibers, and Weigert-oxone to stain mature, elaunin and oxytalan elastic fibers. The density of mature and elaunin elastic fibers showed a progressive increase with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Elastin; Extracellular matrix; Diaphragm; Rectus abdominis. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001200008 |
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| Wiborg, Torben. |
| Four different programming models dealing with the agricultural sectors in Canada, The Netherlands, Sweden and Denmark are analysed. The purpose is to construct a knowledge base for the development of a new sector model for Danish agriculture. This analysis has created a valuable set of resources for use in the development of the model. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agribusiness. |
| Ano: 2000 |
URL: http://purl.umn.edu/24211 |
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| Duvel, G.H.; Stephanus, A.L.. |
| In an endeavour to improve the livestock production and particularly the marketing of livestock in the Northern Communal Areas of Namibia, this study analyses the perception of livestock farmers in this regard. The findings show that the decision making is significantly influenced by numerous socio-cultural considerations, which in many cases even overshadow the economic ones. This is manifested in the low off-take percentage, the lacking interest in commercial production, and the fact that the sale price offered to the farmer is not the most important consideration when deciding to whom to sell. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries; Marketing. |
| Ano: 2000 |
URL: http://purl.umn.edu/54225 |
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| Aumeier,Pia; Rosenkranz,Peter; Gonçalves,Lionel Segui. |
| In order to examine the significance of hygienic behavior for the tolerance to varroosis of Africanized honey bees, they were compared with non-tolerant Carniolans in tropical Brazil. Capped worker brood cells were artificially infested with living Varroa mites, and inspected some days later. Uncapping, disappearance of the introduced mite and removal of the pupa were recorded in a total of manipulated 3,096 cells during three summer seasons. The hygienic response varied between Africanized and Carniolan colonies, but this difference was significant only in one year, during which Africanized honey bees removed a significantly greater proportion of Varroa mites than European honey bees. A high proportion of the mites disappeared from artificially infested... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000400013 |
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| Sugano, Joel Yutaka; Santos, Antonio Carlos dos. |
| Given that the fast transformations occurred in national and international scenery point out to a necessity of gain of efficiency to increase in competitiveness to the firms, the environment which into they are and into they develop, assume a vital importance as been the supporter foundation of this development. For this environment can be understood as the process of space concentration of many correlative segments of a production chain, also called as clusterization process, which this special conformation gives to the firms special conditions to develops the superior competitive advantages than the others firms isolated. In this sense, this paper aim to arise how occurs the process of conformation of a big cluster, culminating in satisfaction of ten... |
| Tipo: Journal Article |
Palavras-chave: Cluster; Competitiveness; Agribusiness Chain.. |
| Ano: 2000 |
URL: http://purl.umn.edu/43356 |
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| Registros recuperados: 8.210 | |
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